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Old 04-25-2013, 04:05 PM   #21
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Detroit 4 strokes in a very slick Ed Monk hull.
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Old 04-25-2013, 04:29 PM   #22
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All I know, which isn't much, is his name was Willard Buchanan and his grandson and I worked together for a short time. He told me he used to go to his grandfather's house and he would build boats in his backyard. He said he was making boats up to his death even after selling the boat company.

I think his company was in CostaMesa, CA or close to that city and he helped design boats as well. I don't think he had formal training. Mike is the grandson and he was living in San Pedro, CA.

Here is a story about Willard.

http://www.heritech.com/seawitch/wilbo.htm

New Page 1

Wilmington Boat Works

I just learned a lot more about him myself.

I used to haul out at the Wilmington Boat Works. The owner recently was a Serbian named Dinko and he was notorious. He either liked you or he hated you. No inbetween. I sent a few people there that went on the hate list. They were launched quick and he wouldn't do work on their boats again.
I couldn't get the first link to open. Willards were made in Costa Mesa but I don't think it is the same company. There is nothing on the list of ships built the sounds like Vega or a Willard 36. Willard Boats is still in business making boats for the government they went out of the yacht business almost 10 years ago. My boat was built in '62. and the company was founded '57.
http://pacificmotorboat.com/willardb...illard-vega-36
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Old 04-25-2013, 05:00 PM   #23
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40' Dave Martin designed Trendsetter 40 ...

TAMD60B 235hp

1300RPM 1.6gph at 8.2knots (full load)
2400RPM 8.0gph at 20.0knots (light load)
2400RPM 8.0gph at 14.0knots (Full load)
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Old 04-25-2013, 05:37 PM   #24
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44' Ocean Alexander, 39.5 lwl, 14' beam, semi-planing twin, 30,000 pounds....

1500 rpm 8.4kts 4.0 gph
1600 8.9 4.5 gph (normal slow cruise to keep turbos on boost)
1700 9.2 5.0
1800 9.5 5.6
1900 9.8 6.4
2000 10.6 7.2
2100 11.2 8.2
2200 11.8 9.2
2300 12.4 10.4 (Solidly "on plane" such as it is)
2400 13 11.6
2500 14 13.2
2600 15 14.8
2700 15.9 16.4
2700-3000 I don't go there

25-30% improvement in fuel burn @ slow cruise with one engine stopped/propeller free-wheeling.
So at 1500 RPM you are sitting at WLL X 1.34. Very impressive. The 8.2s are quite fuel efficient - too bad DD couldn't replicate their performance in the MTU Series 60 4 strokes.
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Old 04-25-2013, 05:41 PM   #25
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40' Dave Martin designed Trendsetter 40 ...

TAMD60B 235hp

1300RPM 1.6gph at 8.2knots (full load)
2400RPM 8.0gph at 20.0knots (light load)
2400RPM 8.0gph at 14.0knots (Full load)

Along with Skidgear, you guys are really blowing the socks off the mythical 90% of WLL maximum efficiency number posted earlier. 2.5 nmpg at 20 knots, great! That is approaching big power cat efficiency. I trust you are not using Imperial gallons??
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Old 04-25-2013, 05:49 PM   #26
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Skidgear,

That boat is light compared to my woodie. I'm 36,500 to 38,000
How did they make it so light?
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Old 04-25-2013, 06:18 PM   #27
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I don't see anything changing. The nmpg is still better at the 90% for displacement or semi.
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Old 04-25-2013, 06:21 PM   #28
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1.9-2.1gph @ 6.9knts
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Old 04-25-2013, 07:16 PM   #29
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Here are some numbers for our 46 Westcoast with a single Cummins 270B. At 1400 rpm we're at 8 knots burning 2.5 gallons/hr. At 1600 rpm we're at 9.2 knots burning 3.6 gallons/hr. At 1800 rpm we're at 10 knots burning 4.8 gallons/hr. Top end is 2600 rpm. I generally run at 1400-1600 rpm.

The fuel burn numbers are based on what Cummins chart gives for the 270B. I took the speed runs at slack tide. As anyone who boats in the Northwest knows, it's hard to find a completely slack current, but this was at slack and it looked and felt like it was slack.
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Old 04-25-2013, 07:27 PM   #30
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Skidgear,

That boat is light compared to my woodie. I'm 36,500 to 38,000
How did they make it so light?
It's a fairly compact design compared to a "real trawler", although the hull is solid glass and hell for stout. I've always wondered if the factory 28,000 number (probably empty weight) was a hold over from the 39' before they added the cockpit. Anyway, I think you're right...it's likely 32-33K for sure.

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Old 04-25-2013, 07:48 PM   #31
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I don't see anything changing. The nmpg is still better at the 90% for displacement or semi.
That's right. I just don't run our boat that slow because I want to keep the boost up a bit and the boat rides and handles much better with a bit more speed. But the prop/engine charts show some significant gains as the speed drops to the 90% value and below.
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Old 04-25-2013, 07:51 PM   #32
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I (thurman) see you like the wood trawler. As a live aboard is this a good idea most cleanings will be done in the boat yard. I will be able to do it at anchor on traveling if fowling becomes a problem using my scuba gear. Doesn't wood require more maintenance? The boat will not be out of the water much!! There are places to go and things to see. I wish to thank everyone for the information provided. It has cleared up some things and created more questions for my research but it has definitely made me want a trawler more.
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Old 04-26-2013, 06:02 AM   #33
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Doesn't wood require more maintenance?

What is required on wood is INSTANT attention.

A deck or window leak on a GRP boat is simply a pain and a stain below.

Any deck leak on a wooden boat is a danger , as the wood below goes from wet to dry and back, passes thru the dry rot zone , a constant danger.
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Old 04-26-2013, 01:36 PM   #34
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Here are some numbers for Hobo

Full-displacement, full-keel hull.
LOA..............................42'-4"
LWL..............................39'-2"
Beam.............................15'
Draft.............................4'-11"
Displacement (full load).......45,000 lbs
Fuel..............................700 gals
Water.............................300 gals
Ballast.........................2,500 lb

Anchor to anchor for the last 857 miles with the paravanes deployed except within harbors. The paravanes cost us about 3/4 knot of hull speed.

1.7 GPH at 6 knots. If we go up to 8 knots the GPH would more than double.
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Old 04-26-2013, 02:17 PM   #35
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Since the 80's there has been more awareness of how to properly maintain wood and keep it from rotting. I think the biggest lesson to learn about wood is epoxy is your friend and polyester is the enemy. You have to resist bondo that says marine on it because you know it's polyester. You learn about Smith's CPES and West System or another glueing epoxy.

Once wood is saturated with epoxy, it becomes bullet proof for the most part. I wouldn't rule out a wood boat just because of the material it was built of. There is no free lunch and FRP boats are not without problems. Steel, concrete, carbon fiber and aluminum all have problems. It becomes a trade off.

Good luck, I am happy you are choosing a trawler. I think trawler owners are the wisest of all boaters. Why? Because they chose the best of all worlds in a boat and lifestyle.
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Old 04-26-2013, 02:25 PM   #36
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18,500 lbs. 38' twin 175 na Hino power, Westerbeke 8BTD gen. 3 year fuel burn rate running 100 + hours per year & @90 per year on gen. 2.8 gph includes gen. time, we run it while cruising to keep the berth cool for the grandkids naps & cooking while anchored out. I run at the speed needed to reach destination in a reasonable amount of time, it is the cruising that's enjoyable, some times I'll get on step to reach a lock or to get ahead of a tow if needed.
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Old 04-26-2013, 03:36 PM   #37
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Larry,

Your boat has three times the displacement of Willy and dosn't burn twice as much fuel at 6 knots. Very good.

Since ther'e both full disp the efficiency must be due to the greater WLL.

Cap,

What does CPES cost?
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Old 04-26-2013, 04:17 PM   #38
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[QUOTE=manyboats;152486]Larry,

Your boat has three times the displacement of Willy and dosn't burn twice as much fuel at 6 knots. Very good.

Since ther'e both full disp the efficiency must be due to the greater WLL.

[QUOTE]

Eric: The longer water line would be my guess. We're on our way to the States and will probably do the ICW from some where around Miami to Jacksonville. Without the paravanes, it will be interesting to see what our burn rate does in protected waters.
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Old 04-26-2013, 06:13 PM   #39
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Smith' Clear Penetrating Epoxy Sealer is a 50/50 mix. Very easy to mix and use. It's very thin and will run off a brush that is too wet and right down your wrists so I always use gloves, a must.

It will soak deep into the wood and kill the wood rot spores so nothing else is needed. I always soak and go back in a few minutes to soak more and repeat that until it won't hold any more. It cures in 24 to 48 and will off gas a lot.

Cost is around 56-60.00 for a 2 quart kit. The gallons, which makes 2 gallons, is just under 200.00. It has gone up. I paid 100 for the 2 gal kits when I did my boat bottom.
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Old 04-26-2013, 06:25 PM   #40
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Larry, Yup WLL. I think it costs quite a bit to drag those paravanes through the water.

WOW .... the stuff sounds great but $$$$$$
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